An employee stands next to some paintings as the Prado museum reopens to public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

RTS3B5FX

June 06, 2020

An employee stands next to Tintoretto's painting 'Christ washing the disciples' feet' as the Prado museum...

An employee stands next to Tintoretto's painting 'Christ washing the disciples' feet' as the Prado museum reopens to public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

RTS3B5CN

June 06, 2020

People wearing protective face masks queue near a musician wearing a protective face mask, while they...

People wearing protective face masks queue near a musician wearing a protective face mask, while they wait to enter at the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

Visitors wearing protective face masks look at Hieronymus Bosch's painting 'The seven deadly sins and the four last things' at the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

RTS3B5A2

June 06, 2020

Visitors wearing protective face mask look at the paintings at the Prado museum as it reopens to the...

Visitors wearing protective face mask look at the paintings at the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

RTS3B59M

June 06, 2020

A man stands next to Spanish artist Francisco de Goya's painting 'La marquesa de Santa Cruz' as the Prado...

A man stands next to Spanish artist Francisco de Goya's painting 'La marquesa de Santa Cruz' as the Prado museum reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

RTS3B588

June 06, 2020

A man checks his body temperature to enter to the Prado museum as it reopens to the public under strict...

A man checks his body temperature to enter to the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

RTS3B56G

June 06, 2020

A man checks his body temperature to enter to the Prado museum as it reopens to the public under strict...

A man checks his body temperature to enter to the Prado museum as it reopens to the public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. REUTERS/Juan Medina

Spanish Minister of Culture Jose Manuel Rodriguez attends the reopening of the Prado museum to public under strict social distance measures, amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 6, 2020. The banner reads ''Reunited, the Prado like you've never seen it'' .REUTERS/Juan Medina

RTS3AZOK

June 05, 2020

A woman wearing a protective face mask salutes as people hold a minute of silence during the last day...

People hold a minute of silence in memory of those who died of the coronavirus disease (COVID-19), in...

A woman wearing a protective face mask salutes as people hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

RTS3AXKE

June 05, 2020

A woman wearing a protective face mask and a shield looks on as people gather to hold a minute of silence...

People hold a minute of silence in memory of those who died of the coronavirus disease (COVID-19), in...

A woman wearing a protective face mask and a shield looks on as people gather to hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

RTS3AXKD

June 05, 2020

People wearing protective face masks gather to hold a minute of silence during the last day of the official...

People hold a minute of silence in memory of those who died of the coronavirus disease (COVID-19), in...

People wearing protective face masks gather to hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

RTS3AXIS

June 05, 2020

People wearing protective face masks hold a minute of silence during the last day of the official ten-day...

People hold a minute of silence in memory of those who died of the coronavirus disease (COVID-19), in...

People wearing protective face masks hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

RTS3AXIT

June 05, 2020

A man wearing a protective face mask with the Spanish flag looks on as people gather to hold a minute...

People hold a minute of silence in memory of those who died of the coronavirus disease (COVID-19), in...

A man wearing a protective face mask with the Spanish flag looks on as people gather to hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

RTS3AXI3

June 05, 2020

A woman wearing a protective face mask salutes as people hold a minute of silence during the last day...

People hold a minute of silence in memory of those who died of the coronavirus disease (COVID-19), in...

A woman wearing a protective face mask salutes as people hold a minute of silence during the last day of the official ten-day mourning of those who died of the coronavirus disease (COVID-19), at Puerta del Sol square in Madrid, Spain June 5, 2020. REUTERS/Sergio Perez

RTS3AT1B

June 04, 2020

A worker wearing a protective mask arranges clothes in a mannequin at Desigual store, as some Spanish...

A woman wearing a protective face shield and mask tries on clothes into a Desigual store, as some Spanish provinces are allowed to ease lockdown restrictions during phase one, amid the coronavirus disease (COVID-19) outbreak, in Barcelona, Spain, June 4, 2020. REUTERS/Nacho Doce

RTS3AS5H

June 04, 2020

A man carries a woman next to members of the orchestra after a funeral mass for the coronavirus disease...

Funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville

Members of the orchestra and choir of the University of Seville wear protective face masks as they take part in a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

People hold signs in protest against the death in Minneapolis police custody of African-American man George Floyd, during a candlelit vigil at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

RTS3ARRL

June 04, 2020

People light candles during a candlelit vigil for George Floyd following his death in Minneapolis police...

People hold signs in protest against the death in Minneapolis police custody of African-American man George Floyd, during a candlelit vigil at Catalunya square in Barcelona, Spain June 4, 2020. REUTERS/Nacho Doce

Funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville

Members of the orchestra and choir of the University of Seville take part in a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

RTS3AR3G

June 04, 2020

People wear protective face masks as they attend a funeral mass for the coronavirus disease (COVID-19)...

Funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville

Andalusian regional president Juan Manuel Moreno wears a protective face mask as he attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

RTS3AQZT

June 04, 2020

Andalusian regional president Juan Manuel Moreno wears a protective face mask as he attends a funeral...

Funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville

Andalusian regional president Juan Manuel Moreno wears a protective face mask as he attends a funeral mass for the coronavirus disease (COVID-19) victims at the cathedral in Seville, Spain, June 4, 2020. REUTERS/Jon Nazca

RTS3AN3O

June 04, 2020

A member of the media looks at paintings as the Prado museum prepares for reopening on June 6th amid...

A member of the media stands next to Rubens and Goya paintings as the Prado museum prepares for reopening...

A member of the media stands next to Rubens and Goya paintings as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

RTS3AN2X

June 04, 2020

A museum worker installs social distance markers as the Prado museum prepares for reopening on June 6th...

A museum worker installs social distance markers as the Prado museum prepares for reopening on June 6th...

A museum worker installs social distance markers as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

RTS3AN2O

June 04, 2020

A museum worker wears a protective mask as the Prado museum prepares for reopening on June 6th amid the...

A member of the media gets his temperature checked upon entering the Prado museum while it prepares for...

A member of the media gets his temperature checked upon entering the Prado museum while it prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

RTS3AN2M

June 04, 2020

Members of the media work as the Prado museum prepares for reopening on June 6th amid the coronavirus...

Museum workers remove an old poster from the outside of the Prado museum as it prepares for reopening...

Museum workers remove an old poster from the outside of the Prado museum as it prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

RTS3AN2A

June 04, 2020

A museum worker wears a protective mask as the Prado museum prepares for reopening on June 6th amid the...

Social distance markers are seen on the ground as the Prado museum prepares for reopening on June 6th...

Social distance markers are seen on the ground as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

RTS3AMVQ

June 04, 2020

Social distance markers are seen next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the...

Social distance markers are seen next to Spanish artist Velazquez's painting 'Las Meninas' as the Prado...

Social distance markers are seen next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera

RTS3AMVO

June 04, 2020

A member of the media stands next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado...

A member of the media stands next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado...

A member of the media stands next to Spanish artist Diego Velazquez's painting 'Las Meninas' as the Prado museum prepares for reopening on June 6th amid the coronavirus disease (COVID-19) outbreak, in Madrid, Spain, June 4, 2020. REUTERS/Susana Vera